'Duel' is one of the greatest suspense films of all time.
The term 'psychological thriller' is an elastic one these days, tagged liberally on to any story of suspense that explores motivations while keeping blood and chainsaws to a minimum.
I think the best fiction is a form of psychological suspense, even though I don't really write in that idiom.
For me, suspense is always harder and better than going for the quick, outright scare.
This suspense is terrible. I hope it will last.
When the reader and one narrator know something the other narrator does not, the opportunities for suspense and plot development and the shifting of reader sympathies get really interesting.
I do try not to spend much time reading in the suspense genre.
A lot of the best suspense operates on a careful withholding of information as opposed to the doling out of information.